FAMILI ES. 



55. MURID.E - Rats. 



56. SPALACID^E - - Mole Rats. 



57. DIPODID.'E - - Jerboas. 



68. MYOXID.E - - - Dormice. 



59. SACCOMYID^ Pouched Rats. 



60. CASTOR I D.E Beavers. 



61. SCIURID.-E - - - Squirrels. 



62. HAPLOODONTIDJE ----- Sewellals. 



63. CHINCH ILLID.E Chinchillas. 



64. OCTODONTID^ - Octodons. 



65. ECHIMVID.E Spring Rats. 



66. CERCOLABID.E Tree Porcupines. 



67. HYSTRICID.E Porcupines. 



68. CAVIID.E - Cavies. 



69. LAGOMYID^ PiKAS- 



70. LEPORID.E Hares. 



